{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "No change in erythrocyte counts were observed , but there was a two - fold decline in leukocyte counts in all TiO ( 2 ) treatment groups relative to time - matched controls ."}
{"Chemical": ["TiO ( 2 )"]}